ISO 9001 / CE Certified British-Owned Engineering

China Air Cooled Compressor Factories & Exporter

High-Efficiency Permanent Magnet Variable Frequency (PM VFD), Two-Stage Compression, and Class 0 Oil-Free Industrial Air Systems Engineered for Rigorous Global Duty.

Industrial Series Catalog

High-Performance Air-Cooled Compressor Solutions

Direct from our 50,000 m² Shanghai automated manufacturing plant. Explore our premier configurations optimized for extreme ambient performance, variable flow rates, and low kilowatt-hour per cubic meter operations.

China Horizontal two-stage pressure screw air compressor Two Stage Screw Air Compressor Electric Screw Air Compressor Price Suppliers, Exporters

China Horizontal two-stage pressure screw air compressor Two Stage Screw Air Compressor Electric Screw Air Compressor Price Suppliers, Exporters

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ODM electrical motor PM AC ASD rotary air vaccum pump compressor screw compressor Manufacturer, Manufacturers

ODM electrical motor PM AC ASD rotary air vaccum pump compressor screw compressor Manufacturer, Manufacturers

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China 55kw to 315kw Oil free screw air compressor with dry type fixed speed or VSD PM type Suppliers, Exporters

China 55kw to 315kw Oil free screw air compressor with dry type fixed speed or VSD PM type Suppliers, Exporters

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OEM Two-stage Screw air Compressor Chemical Factory Air Equipment Two-stage Screw air Compressor Manufacturer, Factory

OEM Two-stage Screw air Compressor Chemical Factory Air Equipment Two-stage Screw air Compressor Manufacturer, Factory

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OEM 30kW Water Lubricated Oil Free VSD Screw Air Compressor 380V 400V 415V Industrial Air Compressor Suppliers, Factory

OEM 30kW Water Lubricated Oil Free VSD Screw Air Compressor 380V 400V 415V Industrial Air Compressor Suppliers, Factory

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China Smart energy saving water lubricating 100% oil free screw air compressor with fixed speed or VSDPM Manufacturers, Exporter

China Smart energy saving water lubricating 100% oil free screw air compressor with fixed speed or VSDPM Manufacturers, Exporter

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China 55KW 75HP 7-13bar air compressor two stage screw air compressor Direct Drive Screw Type Compressors with VSD PM motor and Inverter Factory, Factories

China 55KW 75HP 7-13bar air compressor two stage screw air compressor Direct Drive Screw Type Compressors with VSD PM motor and Inverter Factory, Factories

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OEM 18.5kW 25HP Industrial VFD PM Screw Air Compressor Factory, Exporter

OEM 18.5kW 25HP Industrial VFD PM Screw Air Compressor Factory, Exporter

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20+
Years British-Owned Manufacturing Experience
50,000m²
Automated Shanghai Smart Plant Facility
40%
Maximum Energy Reduction via PM VFD
50+
Global Export Destinations Supported
Class 0
ISO 8573-1 Certified 100% Oil-Free Air Quality

Thermodynamic Aerodynamics & Air-Cooled Engineering

Modern industrial facilities demand compressed air solutions that perform relentlessly without the auxiliary burdens of water cooling circuits, cooling towers, continuous water treatment, and biological fouling hazards. As a premier China air cooled compressor manufacturer and exporter, Shanghai Honest Compressor Co., Ltd. (founded 2004) architects thermodynamic heat dissipation systems explicitly tuned for high-stress industrial operation.

Our air-cooled rotary screw compressor configurations utilize oversized micro-channel aluminum fin-and-tube coolers paired with backward-curved, aerodynamically balanced centrifugal cooling fans. By controlling laminar boundary layers across cooling matrices, our units maintain approach temperatures within 5°C to 8°C above ambient levels, operating steadily even in tropical and desert environments up to 46°C (115°F).

  • Zero Water Consumption Architecture
  • Dual-Inverter Permanent Magnet Drive
  • Asymmetric 5:6 Precision Rotor Profile
  • Harmonic IEEE 519 Compliant Drives

Lifecycle Cost (TCO) Domination

Electricity accounts for nearly 78% of the 10-year Total Cost of Ownership of a rotary screw air compressor. Our PM VFD systems reduce unthrottled idle run times, driving immediate energy payback.

High Ambient Thermal Management

Designed with isolated hot/cold airflow chambers preventing recirculation. Cooling air directly washes the electronic control inverter and motor windings before cooling the oil/air matrix.

Rigid Structural Damping

Reinforced sub-frames with heavy-duty elastomeric isolators absorb 99.2% of vibrational energy, protecting sensitive internal electronics and bearings from fatigue failure.

Supply Chain Excellence

The China Factory Advantage in Compressed Air Sourcing

Why global EPC contractors, tier-1 industrial brands, and machinery importers prioritize our Shanghai manufacturing ecosystem for air-cooled compression machinery.

Vertically Integrated Manufacturing

From precision gray and ductile iron casting to five-axis CNC screw rotor profile grinding and cleanroom rotor assembly, our internal supply loop minimizes outsourcing variance. We maintain total traceable control over steel metallurgy, heat-treating, rotor balancing, and final casing tolerances.

In-House CNC Airends Metallurgical Traceability Zero Subcontracting Leakage

Rare-Earth Motor Core Synergies

China commands the world's leading rare-earth processing capabilities for Neodymium-Iron-Boron (NdFeB) permanent magnets. Our integrated factories directly access ultra-high coercivity grade magnets rated for continuous operation at 180°C without risk of thermal demagnetization, ensuring IE4/IE5 ultra-premium motor efficiency.

NdFeB Magnets IE4 & IE5 Efficiency Thermal Stability 180°C

Flexible OEM/ODM Scalability

We provide multinational distributors with dedicated engineering adaptation: bespoke 208V, 230V, 380V, 400V, 415V, 460V, or 575V at 50Hz/60Hz; specialized explosion-proof certifications (Ex d IIB/IIC); marine-grade offshore paint schemes; custom smart HMI touchscreen languages, and integrated skid designs.

Global Voltages Private Label Branding Custom Skid Packaging
Comparative Analysis

Technical Performance & Energy Matrix

An engineering comparison of industrial air-cooled compression architectures. Compare specific power consumption, pressure capabilities, and operational criteria to select the precise machine for your plant.

Compressor Technology Cooling Mode Specific Power (kW/m³/min) Turndown Ratio Air Quality Class (ISO 8573-1) Typical Industrial Applications
Single-Stage PM VFD Rotary Screw Forced Air-Cooled 6.1 – 6.8 @ 8 bar 25% – 100% Dynamic Class 1–2 (Oil-Injected) General fabrication, automotive assembly, packaging lines
Two-Stage Air-Cooled Screw Intercooled Air Blast 5.2 – 5.8 @ 8 bar Highest Efficiency 35% – 100% Class 1 (with downstream filtration) Chemical manufacturing, heavy steel, 24/7 base load plants
Dry-Type Oil-Free PM VFD Enclosed Air-Cooled 6.8 – 7.4 @ 8 bar 30% – 100% ISO Class 0 (100% Oil-Free) Pharmaceuticals, food & beverage, semiconductor fabs
Water-Lubricated Oil-Free VSD Air-Cooled (Water loop) 5.9 – 6.4 @ 8 bar 30% – 100% ISO Class 0 (100% Oil-Free) Medical breathing air, precision electronics, textile weaving
Integrated 4-in-1 Explosion-Proof Heavy Air-Cooled Matrix 6.4 – 7.0 @ 8 bar Fixed / VFD Hybrid Custom Process Air Offshore rigs, chemical refineries, hazardous Zone 1/2 sites
Export Compliance Assurance

Built for Seamless Global Market Clearance

We eliminate regulatory friction. Every air-cooled screw compressor manufactured in our Shanghai facility is pre-engineered, tested, and certified to meet the statutory codes of destination markets worldwide.

CE & European Directives

Fully compliant with the European Machinery Directive 2006/42/EC, Low Voltage Directive 2014/35/EU, and EMC Directive 2014/30/EU. Air receivers certified under Pressure Equipment Directive (PED 2014/68/EU).

ASME Pressure Code

Pressure vessels fabricated and stamped in accordance with ASME Boiler and Pressure Vessel Code Section VIII, Division 1, accompanied by Manufacturer's Data Report Form U-1A for North American projects.

ISO 8573-1 Class 0 Purity

Independently certified by third-party testing laboratories (including TÜV) confirming zero total hydrocarbon content (oil aerosol, liquid, or vapor) across all speed and temperature testing regimes.

Middle East & Americas Electrical

Pre-configured electrical cabinets matching UL 508A, CSA C22.2, SASO/SABER (Saudi Arabia), and EAC (Eurasian Union) requirements, featuring Schneider/Siemens electrical protection switchgear.

Application Engineering

Engineered for Harsh Environments & Demanding Tasks

How our air-cooled rotary compressors solve localized climate, operational, and clean air challenges worldwide.

High-Heat Desert & Arid Zones

In regions like the Middle East, North Africa, and Western Australia, cooling water is scarce and ambient temperatures exceed 45°C. Our air-cooled units incorporate high-delta-T coolers with specialized anti-dust fin pitching, heavy-duty pre-filtration cyclonic hoods, and synthetic synthetic lubricants preventing oil varnish.

Dust-Repelling Fins Pre-Filtration Inlets

Food, Dairy & Beverage Packaging

Where compressed air directly contacts food wrappers, PET blow molding, or conveyor pneumatics, oil carryover cannot be risked. Our EOF Series dry oil-free and water-lubricated models supply ISO 8573-1 Class 0 certified air, preventing batch contamination and product recall liabilities.

Zero Oil Contamination FDA Approved Dampers

Heavy Stamping, Metal & Steel Mills

Fluctuating pneumatic duty cycles in large manufacturing plants create catastrophic pressure drops with fixed-speed compressors. Our two-stage PM VFD compressors instantly ramp motor speeds between 15 Hz and 80 Hz, maintaining steady network pressure within ±0.1 bar while eliminating costly motor idle cycles.

±0.1 Bar Regulation Soft Inverter Starting

The 10-Year Lifecycle Formula

When evaluating a compressor purchase, procurement officers must weigh lifecycle expenses. Over 10 years of continuous 6,000-hour duty:

78% Electrical Consumption
Power drawn by the motor during loaded and unloaded cycles.
12% Routine Maintenance
Lubricant, separator cartridges, intake air filters, and valve rebuilds.
10% Initial Capital Equipment (CAPEX)
Machine acquisition, import duties, and initial site piping installation.
Procurement Strategy

How to Audit an Air-Cooled Compressor Supplier

For international buyers importing from China, evaluating technical authenticity protects against inflated energy efficiency ratings and inadequate thermal design:

1. Verify Free Air Delivery (FAD) Testing: Ensure rated volumetric output (m³/min or CFM) conforms strictly to ISO 1217:2009 Annex C or Annex E standards. Demand certified factory test certificates recording real shaft power input.

2. Scrutinize Airend Rotor Size: Low-cost suppliers compensate for under-sized rotary airends by over-speeding smaller rotors with gear accelerators. Honest Compressor operates large-displacement rotor sets spinning at lower RPM (1,480 to 2,980 RPM), reducing internal friction and drastically extending bearing lifespans beyond 60,000 operational hours.

3. Review Thermal Separation Design: Avoid open-chassis designs where radiant heat from the motor and compression cylinder pre-heats incoming intake air. Every 3°C rise in intake temperature reduces overall compressor efficiency by 1%.

Technical Knowledge Base

Frequently Asked Engineering & Sourcing Questions

Essential technical answers for mechanical engineers, factory managers, and import directors.

What are the main advantages of air-cooled vs. water-cooled screw compressors?
Air-cooled screw compressors eliminate the capital investment, complexity, and ongoing maintenance of dedicated cooling water towers, circulation pumps, chemical water softening systems, and blowdown permits. They eliminate risks of scale build-up inside internal heat exchangers, cannot freeze during seasonal plant shutdowns, and can be installed rapidly in any ventilated indoor or covered outdoor plant space with zero water infrastructure.
How does two-stage air-cooled compression achieve higher specific efficiency?
Two-stage compression divides the overall pressure ratio between two distinct male/female rotor pairs connected in series. Between the first and second stage, interstage air cooling (or oil curtain cooling) lowers air temperatures closer to isothermal ideal compression. Because work done on gas is proportional to temperature, intermediate cooling lowers the compression work required by the second stage, saving between 9% and 15% in electrical power compared to single-stage equivalents.
How do you guarantee ambient temperature survival up to 46°C without tripping?
Our engineers specify oversized heat exchanger surface areas with wide fin spacing that resists particle obstruction. Furthermore, our cooling fans utilize dedicated variable-frequency control to increase CFM airflow as temperatures rise, while maintaining internal synthetic lubricant temperatures strictly between 80°C and 92°C to prevent both moisture condensation and thermal oil degradation.
What is the difference between dry-type oil-free and water-lubricated screw units?
Dry-type oil-free compressors utilize timing gears to synchronize high-precision coated rotors that never make physical contact, operating with zero liquid in the compression chamber. Water-lubricated compressors inject purified RO water directly into the screw cavity; the water acts as a natural seal, lubricant, and cooling medium, achieving near-isothermal compression with lower rotor rotational speeds and exceptional energy efficiency. Both models are certified ISO 8573-1 Class 0.
Can Honest Compressor build machines tailored to non-standard electrical grids?
Yes. Our Shanghai facility produces tailor-made units for any global electrical environment: 200V, 208V, 220V, 380V, 400V, 415V, 440V, 460V, 480V, and 575V at either 50Hz or 60Hz. We configure high-ambient inverters and motor windings with Class H insulation and Class F temperature rise allowances, paired with specialized line reactors to suppress grid electrical noise.
What is the expected lead time and shipping packaging for overseas export?
Standard air-cooled models typically ship within 15 to 25 business days from order confirmation. Customized OEM voltages or explosion-proof units require 30 to 40 days. Each machine undergoes full-load factory run-in testing, desiccant vacuum wrapping, anti-corrosion barrier protection, and is bolted within an export-grade IPPC heat-treated solid timber crate tailored for container maritime transport.
Extended Industrial Portfolio

Heavy-Duty Specialized Compressors & Blowers

Engineered for long-life operation, high turndown ratios, and maximum thermodynamic recovery. Inquire directly with our Shanghai application engineering team.

China Permanent Magnet VFD Rotary Screw Compressor 11kW Manufacturer, Manufacturers

China Permanent Magnet VFD Rotary Screw Compressor 11kW Manufacturer, Manufacturers

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ODM IP55/54 55KW 75HP Factory Price Two Stage Industrial Screw Type Air Compressor Machine Factories, Exporters

ODM IP55/54 55KW 75HP Factory Price Two Stage Industrial Screw Type Air Compressor Machine Factories, Exporters

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China Honest Compressor -EOF series Oil-Free Dry Type Screw Compressor | 100% Oil-Free PM VFD Manufacturer, Exporter

China Honest Compressor -EOF series Oil-Free Dry Type Screw Compressor | 100% Oil-Free PM VFD Manufacturer, Exporter

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China Oil-Free Water Lubricated Screw Air Compressor EOWV-45A/W Suppliers, Exporter

China Oil-Free Water Lubricated Screw Air Compressor EOWV-45A/W Suppliers, Exporter

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China Low Noise Industrial High Efficiency 10HP 15HP 20HP 30HP 100HP Rotary Pm VSD Screw Type Air Compressor Factory, Exporter

China Low Noise Industrial High Efficiency 10HP 15HP 20HP 30HP 100HP Rotary Pm VSD Screw Type Air Compressor Factory, Exporter

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OEM Double permanent magnet motor integrated two-stage compression series Supplier, Factory

OEM Double permanent magnet motor integrated two-stage compression series Supplier, Factory

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ODM PM&VSD Oil‑Free Screw Blower Factories, Exporters

ODM PM&VSD Oil‑Free Screw Blower Factories, Exporters

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OEM VFD screw air compressor 0.7-1.25mpa Energy Saving up to 30% Manufacturers, Exporter

OEM VFD screw air compressor 0.7-1.25mpa Energy Saving up to 30% Manufacturers, Exporter

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